A. L. Q. Santos

Vascularizaçäo arterial da bolsa cloacal em Gallus gallus domesticus (matrizes de corte Avian Farms)

Estudou-se em trinta exemplares de Gallus gallus domesticus da linhagem Avian Farms, femeas, com idades entre 10 e 12 semanas, a origem, o numero e a ordenacao dos vasos arteriais da bolsa cloacal, mediante injecao dos sistemas vasculares arteriais das aves com solucao aquosa de Neoprene Latex 450 a 50% e posterior dissecacao. Os resultados mostraram a participacao das arterias bursocloacais direita e esquerda em todos os casos, as quais se associavam as arterias mesenterica caudal e caudal mediana em 13,33% e 3,33% dos casos, respectivamente. O numero total de vasos, independentemente da origem, variou de 2 a 5 com maior frequencia de 2 a 3 vasos.

Irrigação da bolsa cloacal, em aves reprodutoras, da linhagem Peterson (Gallus gallus domesticus)

The cloacal bursax92s arteries of 30 males Gallus gallus domesticus were injected whit 50% ARTECOLAO solution, and submitted to dissection. The age of the birds was to 10 to 12 weeks. The vesselx92s origin, number and sequence were studied. The results showed the participation of the left and right bursocloacal arteries in all cases, whit the association of the left and right cloacal arteries (16.66%), median caudal artery (6.66%) and caudal mesenteric artery (3.33%). The total branches number, without considering its origin, varied in 2 to 5, being 2 branches the major frequency. The vessel distribution was the same in each bird.

Sistematização da origem, da distribuição e dos territórios da artéria cerebral caudal na superfície do encéfalo em gatos

In this study were used 26 brains of adult cats, without sex differentiation and definable race, colored with latex and fixed in formaldehyde aqueous solution. The right and left caudal cerebral arteries were single in 96.1% and 88.4% of the sample, respectively. In 69.2% of the samples on the right side and 80.8% on the left, the caudal cerebral artery fin from the anastomosis behind the caudal branch of the internal carotid artery, with a large contribution, and the basal artery terminal branch. In 88.4% of the samples on the right side and 84.6% on the left, the caudal cerebral artery showed the tectal rostral artery and one caudal branche. The caudal branch forked in two branches that supplied the rostral and caudal colliculis of the quadruplet bodies and formed the choroid plexus of the third ventricle. The tectal rostral artery followed ventrally to the piriform lobe and during his way sent some branches to hippocampus. In the left side, this vessel supplied the dorsal surface of thalamus and contributed to the formation of the choroid plexus of the third ventricle.